I recently began using DeepCrawl after putting it off for awhile. I quickly saw the advantage of not only being able to crawl much larger sites (since desktop applications begin to use up a lot of memory once your crawl exceeds a certain number of URLs). I was happy with my decision to begin using DeepCrawl and I quickly found some opportunities for on-site improvements I had previously missed. I quickly became a believer. Aside from the fact that Deep Crawl can crawl a larger number of URLs, it also integrates with Google Analytics and Google Search Console. This allows the tool to give you far deeper insights than a typical site crawler.